Home / 91,071,253.90-125,679,327.52-49,818,146.68

Finding the Fourth Proportional to 91,071,253.90, 125,679,327.52 and 49,818,146.68

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Solution

The fourth proportional to 91,071,253.90, 125,679,327.52 and 49,818,146.68 is: 68,749,587.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,071,253.90 : 125,679,327.52 = 49,818,146.68 : x
  2. Step 2: Convert to fraction form
    91,071,253.90/125,679,327.52 = 49,818,146.68/x
  3. Step 3: Cross multiply
    91,071,253.90x = 125,679,327.52 × 49,818,146.68
  4. Step 4: Simplify right side
    91,071,253.90x = 6,261,111,173,035,120
  5. Step 5: Solve for x
    x = 6,261,111,173,035,120/91,071,253.90
  6. Step 6: Final answer
    x = 68,749,587.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.